Means and the method of making type shuttles for typewriting machines



H. L. PITMAN Aug. 6, 193.5.

MEANS AND THE METHOD OF MAKING TYPE SHUTTLES FOR TYPEWRiTING MACHINES Filed March 19, 1951 9 Sheets-Sheet 1 ATTORNEY Aug. 6, 1935. H. 1.. PlTMAN MEANS AND THE METHOD OF MAKING TYPE SHUTTLES FOR TYPEWRITING MACHINES fifiheets-Sheet Filed March 19, 1951 LU HemyLP/fman.

A TTORNEY 1935- H. PITMAN 2,010,032

MEANS AND THE METHOD OF MAKING TYPEYSHUTTLES FOR TYPEWRITING MACHINES Filed March 19, 1931 9 Sheets-Sheet 5 HIM ,36

INVENTOR Henry L P/fmmz ATTORNEY H. L. PITMAN 2,010,032

MEANS AND THE METHOD OF MAKING TYPE SHUTTLES FOR TYPEWRITING MACHINES Aug. 6, 1935.

Filed March 19, 1951 9 Sheets-Sheet 4 INYENTOR Henry L. P/f/fld/Z BY Z ATTORNEY H. PlTMAN 2,010,032 MEANS AND THE METHOD OF MAKING TYPE SHUTTLES FOR TYPEWRITING MACHINES Aug. 6, 1935.

Filed March 19; 1931 9 Shets-Sheet 5 myENTOR Henry L. P127774. 91

Aug. 0,1935. H TMAN 2,010,032

MEANS AND THE METHOD OF MAKING TYPE SHUTTLES FOR TYPEWRITING MACHINES INVENTOR Henry L .P/fmam.

A TTORNE Y Aug'. 6, 1935. H L. PITMAN 2,010,032

MEANS AND THE METHOD OF MAKING TYPE SHUTTLES FOR TYPEWRITING MACHINES Filed March 19, 1931 9 Sheets-Shet 7 INYENTOR fienry LP/fma/z A ITORNEY H. L. PITMAN 2,010,032

MEANS AND THE METHOD OF MAKING TYPE SHUTTLES FOR TYPEWRITING MACHINES Aug; 6; 1935.,

Filed March 19, 193]. 9 Sheets-Sheet 8 INVENTOR fien/ y L. P/fman.

BY 7 g 2- flfl a ATTORNEY Ext H. L. PITMAN Aug. 6, 1935.

MEANS AND THE METHOD OF MAKING -TYPE SHUTTLES FOR TYPEWRITING MACHINES Filed March 19, 1951 9 Sheets-Sheet 9 INYENTOR wt MN wt fienryl. P/fma/r BY a Z ATTORNEY Patented Aug. 6, 1935 UNITED 1 STATES I 2,010,032 MEANS AND ,THE METHOD OF MAKING TYPE SHUTTLES MACHINES FOR TYPEWRITING Henry L. Pitman, Westfield, N. J., assignor, by

mesne assignments, to Ralph C. Coxhead Corporation, New York, N. Y., a corporation of Delaware Application March 19, 1931, Serial No. 523,920 49 Claims. (cum- 401.5)

This invention relates to the production of type carriers or shuttles of the kind illustrated in my Patent No. 1,974,313, dated Sept. 18, 1934, for typewriting machines of the kind known as the Varityper.

The shuttle is formed of a piece of light weight aid strong sheet metal such as .duralumin or the In carrying out the invention a flat blank is first stamped from a sheet of material. Said blank is then curved and suitable flanges bent. in thereonat its upper andlower edges. The partially formed shuttle is then placed into a die which has types in intaglio and into which the metalis forced to form the types on theface of the shuttle.

In the present invention there is employed rolling means to engage the back of the shuttle in order to flow. the metal on the opposite side into the types of the die to thus form the types on the shuttle. The rolling means is reciprocatory so as to prevent flowing of the metal towards the end thereof of the shuttle. 4

Provision is made in the die to prevent distortion of the shuttle and to prevent the metal from flowing in the direction of rotation of the rolling means to thus prevent shearing of the types, at the end of the shuttle, from the body part of said shuttle.

Other features and advantages will hereinafter appear. 7 V

In the drawings which form part of the specification,

Fig. 1 is a plan View of the shuttle blank;

Fig. 2 is a top plan View of the partially formed shuttle;

Fig. 3 is a vertical section at the line 3-3 of Fig. 2;

Fig. 4 is a top plan view of the shuttle the types of the ribs formed thereon;

Fig. 5 is a vertical section taken at the line 5-5 of Fig. 4; Fig. 6 is a rear elevation of the type shuttle;

Fig. 7 is' a side elevation of the type forming machine; Fig. 8 is a vertical section taken on the line 8-8 of Fig. 7, showing the stops to limit the movement of the rolling means;

Fig. 9 is a vertical section, taken on the line 9-9 of Fig. 7;

Fig. 10 is a front view, partly in section, of the die showing two shuttles therein; 7

Fig. 11 is a Vertical section taken on the line |lll of Fig. 10;

Fig. 12 is a view similar to Fig. 10 but showing the die disassembled;

Fig. 13 is an end ,view of the interior of the die unit at the right in Fig. 12;

Fig. 14 is a side view of the roller carrier;

showing Fig. 15 is a sectional top plan view taken on the line -l5--l5 of Fig. 14;

Fig. 16 is a View similar to Fig. 14 but showing the two units of the roller holder separated;

Fig. 17 is an elevation of the right-hand end of Fig. 16;

Fig. 18 is an elevation of one of two detachable flanges of the die;

Fig. 19 is a similarview of the other flange;

Fig. 20 is a top plan view of a portion of the die engraving means Fig. 21 is 'a vertical section taken on the line 2i-2I of Fig. 20;

Fig. 22 is a side elevation of the fixture for supporting and adjusting a die section in the engraving machine;

Fig. 23 is an end elevation of Fig. 22; and

Fig. 24 is a sectional view of a portion of one of the die sections.

Similar reference characters represent similar parts throughout the several views.

A fiat blank 25, Fig. 1, of light weight material, such as duralumin, is curved to form a body part 26 and flanges 21 and 28, Figs. 2 and 3. The partly formed shuttle 29 thus produced is then placed into the circular aperture 30 of a die 3| comprising detachable sections 32, 33, 34 and 35.

The die 3|, after it is assembled, in a manner hereinafter described, is secured by the jaws 36 of a stationary chuck 31 which may be secured, by a bracket 38, to a bed 39 of the machine.

After the die is secured to the chuck a suitable roller means 40, hereinafter described, is inserted into the aperture 30, which is reciprocated by actuating means 4| to flow the metal of the body part 26 of the shuttle into types 42 (Figs. 10 and 24) in intaglio in said die, said types being engraved in the surface bordering the aperture 30 of the die.

The roller actuating means includes a bar 43,

' (Fig. 7) one end of which engages the roller or kneading means 40, the other end being supported by a center 44 supported in a spindle 45 of a tail stock 46 secured to the bed 39. A detachable handle 41 is supported on the bar 43 by which the latter may be rotated in opposite directions to reciprocate the roller means 40 in the die, stops 48 and 49 (Figs. 7 and 8) being provided on a fixed bracket 50, to limit the movement of the handle in both directions and thus limit the oscillations of the roller means properly with respect to the shuttle being operated upon.

The die 3|, as previously stated, is composed of four sections 32, 33, 34 and 35. These are rigidly held together and are provided with interlocking connections between them to prevent accidental sh fting thereof laterally of each other and radially of the die, and to prevent incorrect assembling of the die sections, in other words, prevent assembling of said sections except with the two co-acting faces towards each other. To this end each of the sections is provided with cross tongues 51 and 52 (Figs. 10, 12 and 13) which fit into corresponding grooves 53 and 5 5 of the adjoining section to thus locate them with respect to each other and prevent radial and lateral shifting of said die sections. After the sections have been assembled they may be secured to a flange or ring 55 (Figs. 10 and 11) by screws 56 threaded into holes El in said die sections.

After the flange 55 is attached to the die two partially formed shuttles 29 are placed into the aperture 3% thereof, each being located laterally in a channel 58 (Figs. 11 and 13) formed by inwardly extending flanges 59; said shuttle blanks being located circumferentially of the aperture by gauge blocks 58 located in slots 65 and extending across the channel 58.

Another flange 52 (Figs. 11 and 19) is subsequently secured to the opposite face of the die by screws 62 which are also threaded into the holes 5?. The flanges 55 and B2 are provided with grooves 63 and E i to conform with the shape of the flanges 2i and 28 of the shuttle blank and into which said shuttle flanges fit. Thus it will be understood that the shuttle blanks are firmly secured in the die after the flanges 55 and are secured thereto, to assist in preventing accidental shifting of the shuttle blanks while being acted upon by the roller means.

After the die has been assembled with the shuttle blanks therein, as above described, it may be placed in the chuck 3? which, as previously described, includes jaws 36, of which there are four, each being guided in radial slots 65 (Figs. 7 and 9), said jaws being operated simultaneously to grip or release the die 3!. The die is described and claimed in my application Ser. No. 642,750 which is a division of this application.

To operate the jaws 36 of the chuck each may be provided with teeth 65 engaged by a spiral 6? formed on the face of a gear 68 which may be rotated by any one of a plurality of bevel gears 88; each gear 69 having a polygonal aperture it into which may be inserted a key or wrench for rotation thereby. Thus it will be understood that if the gear 38 is rotated in one direction the jaws are retracted, or, in other words, moved outwardly through the medium of the spiral 6i, and the gear '38 is rotated in the opposite direction the jaws are moved inwardly to grip the die and also center it in the chuck.

The roller means ii includes two rollers 1E) and ii (Figs. 10, 11 and 14 to 17), the roller it having a shaft '52 engaging in a slot 13 of a roller carrier it which forms part of a roller controlling unit l5} The other roller, i I, has a similar shaft it engaging in a slot ii of a carrier (8. The carrier it is provided with tongues 19 engaging in grooves 8B of the carrier M to provide a sliding connection between said carrier so that the rollers may be moved outwardly from each other at will during the rolling operation to adjust the pressure of said rollers against the shuttles, from time to time, as the rolling operation progresses.

After the roller carriers have been assembled they are contracted totheir closest position so that the rollers '56 and H may be passed-through slots 35 (Figs. 9 and 19) of the flange 62 into alignment with the channel 58 of the die. The roller unit 15 is then expanded until the rollers it] and it touch the face of the shuttle blanks. Subsequently the bar 43 is inserted into a slot 82 of the roller carrier '75 (Figs. 9 and 17), said bar being rectangular in cross-section and hav ing slanting faces 82 (Figs. '7 and 11) engaging slanting faces 83 and 84 of the roller carriers M and 78, respectively. The center 44 of the tail stock is next positioned in the aperture 85 at the end of the bar 13 to assist in supporting it; the spindle 45 in which the center 44 is supported, being operated in the usual manner by a screw (not shown) which is rotated by a hand wheel 86.

After the parts are assembled as above described the lever 4'! may be actuated back and forth between the stops 48 and 49 to actuate the roller means in the die through the medium of the bar t3; the roller it operating on one shuttle blank and the roller H on the other blank, thus flowing the metal into the types 42 of the die to form the types 35 on the shuttles. From time to time the hand wheel 86 of the tail stock'is operated to push the bar 83 further into theroller means to spread the roller carriers l4 and i8 due to the engagement of the inclined faces 32 of the bar 43 with the faces 83 and 84 of said roller carriers. The stops 48 and 49 are positioned with respect to the handle so that the rollers iii and H travel slightly beyond the ends of the shuttle blanks and not farther than the blocks 68. An advantage of alternate reversals of the movement of the rollers i and H is that it prevents cumulative creep of the shuttle in the die which would otherwise result in shearing off of the types from the shuttle while being formed. With this arrangement the possibility of the rollers moving accidentally to the slots 8i and out of the channel 58 is prevented, and the shuttles are not subjected to a shock at each reversal of the operation of the pressure or roller device Ml.

It will be noticed, by an inspection of Figs. and 11, that there are three horizontal tiers or rows of types 3! with spaces therebetween and that the die has three c'orresponding rows of types 81. Accordingly each one of the rollers ill and H is provided with two annular grooves 88 thus dividing each roller into three sections 89, each section engaging the shuttle behind a row of types so as to press only the metal from the body 28 of the blank which registers with the types. This also forms ribs 96 on the back of the shuttle which serve to reinforce the latter; said ribs being produced between the grooves 90 formed by the rollers. It will be understood that with this arrangement of grooved rollers less pressure is necessary than would otherwise be required to flow the metal from the blank into the types of the die.

Provision is made to limit the outward movement of the roller carriers M and i8 so as to control or determine the depth to which the rollers HI and H may work into the shuttles and thus prevent their being rolled too thin. To this end the shafts l2 and 16 of the rollers H3 and H engage inner surfaces 92 and 93 formed on each of the flanges 55 and 6!, when the rolling operation is complete, so that said roller carriers cannot be expanded beyond certain limits by the wedge bar 43.

It will be understood, due to the confinement of the shuttles by the flanges 59, that the corners of the shuttle are protected against breaking during the operation of the rollers against the back of the shuttle.

Inner surfaces 94 of the blocks 60, at the ends of the shuttle, are just flush with the surfaces of the slots 9! at the completion of a rolling operation. It should be understood that the blocks 60, in addition to locating'the shuttle blanks in the die, serve also to preventcrecping of the metal in the direction of the length of the shuttle which tendency is producedby the action of the rollers, which may otherwise result in shearing of the types from the end of the shuttle during the rolling operation.

To prevent collision of the outer ends 85 and 96 of the roller carriers I4 and I8 with the flanges 55 and 6| during, the reciprocation of said carriers each of the roller shafts, I2 and I6 is provided with flanges 91 and '98 which are located at the outside of the flanges 55 and GI while the rolling operation takes place. The flanges 91 also prevent shifting of the roller support 15 transversely of the die 3| by the action of the bar 43 when the latter is moved, in the direction of the arrow in Fig. 11, to expand said roller supporting unit. Lengthwise shifting of the roller shafts 12 and I6 is prevented during the wedging action of the bar 43 by the rollers I and II which, it will be remembered, engage in the channel SI of the die.

After the completion of a rolling operation the die 3I may be removed from the chuck upon the removal of the spreader bar 43. Said die may then be disassembled, as in Fig. 12, and the finished shuttles removed therefrom.

The shuttle, as previously stated, is composed of duralumin which is a composition including copper and aluminum and which composition has the property of hardening by being worked or rolled. Consequently the types formed on the shuttle become hardened by the action of the roller means. 1

The die sections 32, 33, 34 and 35 are engraved individually and for this purpose each may be mounted on a fixture I00 comprising a bracket I0.I which may besecured by. clamps I02 to a work-table I 03 of an engraving machine similar to the one disclosed inthe patent to Taylor No. 542,902, dated July 16, 1895. I

Type patterns I04, of which there is one for each type to be engraved in the die, are secured, one at a time, in a fixture I (Figs. 20 and 21) suitably secured to a pattern "supporting table I05 of the engraving machine. The pattern I04 has a character I05 engraved therein which may be about ten times larger than the types 42 of the die. A tracer or stylus I01 engaging the pattern is secured to an arm I08 of a pantograph, not shown, which supports an engraving tool or drill I 09 (Fig. 23) operating'on the concaved surface of the die to engrave the types 42.

The Various patternsare secured in the same position successively, in a manner hereinafter described. Accordingly the engraving tool I05 operates always in the same area. Consequently provision is made to letter space the die section to locate it in its various letter space positions in the same line or tier'of types. Provision is also made to shift saiddie section toany one of the. tiers or rows H0, III and H2 of types.

To. locate the diein its various letter space positions withrespect to the engraving tool I09, the die section is carried by an indexing sector or support II5 (Figs. 22 and 23) upon which'the die section is located by'do'wel pins I I6 and II 6* mounted on said sector and extending into holes I I! and groove 53 respectively of the die sections; the die section being secured by screws H8 extending through holes I I9 and threaded into the sector H5. The dowel pin H6 in addition to locating the die sector on the sector I I5 prevents incorrect mounting of the die section thereon so as to prevent engraving of the types upside down in the die sections. The sector H5 is provided with a series of holes I20 arranged in an arc struck about the axis ofthe shaft I I6 and spaced angular distances corresponding to those between the types on the shuttle 28. A pin I 2I, supported in the bracket IBI, is provided with a reduced end to enter any one of the holes I20 to locate and assist in holding the sector H5 in any one of its positions. A nut. I22 is threaded onto the shaft I I6 by which the sector I I5 may be permanently secured in its adjusted position.

Thus it will be understood that the die section is adjustable angularly to its various type positions. It will also be understood that, due to the fiat pattern I06, the types 42 engraved in the die section are formed with fiat faces I23 (Fig. 23) so as to produce flat faces on the types 3| of the shuttle 28; fiat faced types being highly desirable so as to prevent buckling of the work sheet by I said types while printing.

As illustrated in Fig. 23 the die section 33 is supported in the fixture I00 and the holes I20 to the left of the sector I I5 are not used for said die section since only that portion of the die section to the right of the slot BI therein is to be engraved. When, however, either of the adjacent die sections 32, 34 is supported in the fixture I00, the holes I 20 to the left of the sector I I5 are used.

To facilitate the locating of the die section with respect to the various tiers there is provided a gauge bar I25 secured to the table I03 by a clamp I26, and a gauge bar I21 secured to the table by a bolt I28. To locate the tier IIO of types, (Fig. 20) at the engraving tool I09, the bracket IN is placed with its edge against the gauge bar I25 and the edge I30 is placed against the gauge I21. The bracket IOI is then secured in this position by the clamps I02. When the middle tier III of types is to be located at the engraving tool a gauge block I 30 equal in width to the distance from the middle of one tier of types to the middle of the adjacent tier, is placed between the gauge I21 and the edge I 30 of the bracket IOI. When the tier I I2 of types is to be located at the engraving tool a gauge block (not shown) twice the width of the block I30 is placed between the gauge bar I21 and the edge I30' of the die supporting bracket; the bracket being held in each of its adjusted positions by the clamps I02.

Thus it will be understood that there is provided a fixture I00 comprising a sector II5 supported by a shaft II6 on a bracket IOI so that it may be adjusted about the axis of said shaft and relatively to the engraving tool I09, for the various types in a tier; said fixture being adjustable as awhole lengthwise of the axis of the shaft II 6 relatively to the engraving tool to shift any one of the type tiers to said tool.

The fixture I05 for holding the patterns or masters I04 may be secured to a table I3I of the engraving machine, by a pair of. C-clamps I3I (Fig. 20). Said fixture comprises a base plate I32 having a transverse groove I33 therein into which the pattern I04 may be slid from one side. A longitudinal groove I34 has a slide I35 located therein which, after the pattern is in position, is pushed by a finger-piece I36, towards the pattern plate I04 thus causing a tooth I31 of the slide I35 to enter a notch I38 to lock the plate I04 against accidental lateral shifting. A thumb nut I39 threaded on a stud I39 secured to the base plate I32 is then tightened to clamp said slide I35 in place. Fingers I40 and HI on the base plate I32 and. slide I35, respectively, overlap the edges of the pattern plate Hi l to assist holding said plate in the groove l33. The pattern holding fixture I05 is parallel to the die supporting fixture H38 andthey are angularly disposed on their respective tables for clearance purposes in the machine. The die holding fixture I and the pattern holding fixture Hi are claimed in my application Ser. No. 642,751 which is also a division of this application.

While certain preferred embodiments of the invention have been shown and described, it will be understood that changes in the form, arrangements, proportions, sizes and details thereof may be made without departing from the scope of the invention as defined in the appended claims.

l. The method of forming a metal type shuttle which includes the forming of a flat blank, then curving the blank into a segment, and then forming types on its convexed surface by repeatedly rolling in opposite directions over the concaved surface thereof.

2. In a machine to form types on a segment, the combination of a curved die, having types depressed therein, over which a blank segment may be placed to expose one surface, a roller to engage the exposed surface of the segment to force the metal at the opposite surface into the type impressions of the die, a holder for said roller, means to repeatedly reciprocate said holder to carry said roller bodily back and forth over said segment alternately in opposite directions and from end to end thereof, means to limit the bodily movement of the roller in each direction to confine its travel to the length of the segment, and means to adjust the pressure of the roller against said segment.

3. In a machine to form a type shuttle, the combination of a die, means to hold said die, said die having a curved aperture into which may be inserted a partially formed curved shuttle, roller means to engage the shuttle to press it against the die, means to effect a reciprocatory rotative movement between the die and the roller means to flow the metal of the shuttle into the types of the die to form types on the face of the shuttle, means to limit the extent of such reciprocatory movement in both directions to confine the action of the rollers to said shuttle, and means to adjust the pressure of the rollers against said shuttle.

4. In a machine to form a type shuttle, the combination of a die, said die being composed of a plurality of detachable units and having a circular aperture into which may be placed two oppositely disposed blank shuttles, types in intaglio in the face of said die extending outwardly from said aperture, means to hold the shuttles against accidental displacement in said die with reference to said types, roller means to engage the shuttles and press them outwardly against said die, and means to actuate the roller means.

5. In a machine to form a type shuttle, the combination of a die, said die being composed of a plurality of detachable units and having a circular aperture into which may be placed two oppositely disposed blank shuttles, types in intaglio in the face of said die extending outwardly from said aperture, means to hold the shuttles against accidental displacement in said die with reference to said types, roller means to engage the shuttles and press them outwardly against said die, means to reciprocate the roller means, said roller means including two rollers and two roller carriers, and means to spread said roller carriers to increase the pressure of the rollers against said shuttles.

6. In a machine to form a type shuttle, the combination of a die, said die beingcomposed of a plurality of detachable units and having a circular aperture into which may be placed two 0ppositely disposed blank shuttles, types in intaglio in the face of said die extending outwardly from said aperture, means to hold the shuttles against accidental displacement in said die with reference to said types, roller means to engage the shuttles and press them outwardly against said die, means to reciprocate the roller means, said roller means including two rollers and two roller carriers, a wedge between said roller carriers, and means to actuate said wedge to spread said roller carriers to increase the pressure of said rollers against said shuttles.

7. In a machine to form a type shuttle, the combination of a die, said die being composed of a plurality of detachable units and having a circular aperture into which may be placed two oppositely disposed blank shuttles, types in in taglio inthe face of said die extending outwardly from said aperture, means to hold the shuttles against accidental displacement in said die with reference to said types, roller means to engage the shuttles and press them outwardly against said die, means to reciprocate the roller means, and means to limit the extent of movement of the reciprocating means in both directions.

8. In a machine to form a type shuttle, the combination of a die, said die being composed of a plurality of detachable units and having a circular aperture into which may be placed two oppositely disposed blank shuttles, types in intaglio in the face of said die extending outwardly from said aperture, means to hold the shuttles against accidental displacement in said die with reference to said types, roller means to engage the shuttles and press them outwardly against said die, means to adjust the roller means to increase the pressure thereof, and means to limit the adjustment of said roller means.

9. In a machine for forming a type shuttle, the combination of a die having an aperture therein, types formed on the inner surface of said die, a shuttle being placeable in the aperture against the types, roller means in said aperture to act upon the shuttle to flow the metal thereof into the types of said die, means to adjust the roller means toward the shuttle, and means on the die to limit the adjustment of the roller means to the desired thickness of the shuttle.

10. In a machine for forming a metal type shuttle, the combination of means acting on one face of the shuttle to displace the metal, means on the other side of the shuttle to form the types by the displaced metal, the metal displacing means being also eifective to form ribs on the side engaged thereby.

11. In a machine for forming a metal type shuttle, the combination of a die having an aperture into which a partially formed curved shuttle may be placed, types in intaglio on the inside of said aperture, means including a roller to operate on the concaved face of the shuttle to press the metal from the convexed face of the shuttle into the types of the die, said roller having grooves to form ribs on the concaved surface of the shuttle.

12. In a machine for forming types on a curved. type carrier, the combination of a die having a circular aperture, three rows of types in intaglio on the surface'of the die forming'the border of said aperture, said aperture being adapted to receive a blank, and means including a roller to operate on the back side of the blank to force the metal into the types on the die, said roller having two grooves to produce ribs between the rows of types.

13. In a machine for forming types on a type carrier, the combination of a die comprising a plurality of sections, each section having a curved inner surface, all of the curved surfaces forming a circular aperture in said die, types in intaglio on the curved surfaces, means to hold a curved blank against the curved surfaces, roller means disposed in the aperture of said die, means to support said die, means to actuate said roller means over said blank to press the metal into said types, and means to increase the pressure of said roller means against said blank.

14. In a machine for forming types on a curved type carrier, the combination of a die having a circular aperture, types in intaglio on the interior surface of said die, detachable flanges on said die to hold the shuttle in place with its curved outer face against the types,,a roller to operate on the back of the blank, means to reciprocate the roller, and means to adjust the roller radially outward towards the types, said flanges being effective to limit the outward adjustment of said roller.

' 15. In a machine for forming types of a curved type carrier, the combination of a die having a circular aperture, types in intaglio in the face of the die against which a curved blank may be placed, a roller to engage the back of the blank, a support for said roller, a chuck to hold said die, a cam element movable lengthwise of the axis of the roller to engage the support to adjust it and thus increase the pressure of the roller against the blank, and means to prevent displacement of the roller support by said element in the direction of movement of the latter.

16. In a machine for forming types of a curved type carrier, the combination of a die having a circular aperture, types in intaglio in the inner face of the die against which a curved blank may be placed, a roller to engage the back of the blank, a carrier for said roller, a chuck to hold said die, acam element movable lengthwise of the axis of the roller to adjust the support to thus increase the pressure of the roller against the blank, a shoulder on said die to prevent axial displacement of the roller when the roller carrier is being adjusted, and flanges on said roller to prevent displacement of the roller carrier transversely of the die.

17. In a machine for forming types of a curved type carrier, the combination of a die having a circular aperture, two sets of types in intaglio in the inner face of said die against which two oppositely disposed blanks may be placed, two flanges onsaid die to form with the inner surface a circular channel, a roller, carrier comprising two telescoping sections, a roller in each section, one of said flanges having two oppositely disposed slots therein through which the rollers may pass into said channel, means to expand said roller carrier to press the rollers against the blanks, and means to actuate the roller carrier to reciprocate the rollers over said blanks.

18. In a machine for forming types of a curved type carrier, the combination of a die having a circular aperture, two sets of types in intaglio in the inner face of said die against which two oppositely disposed blanks may be placed, two flanges on said die-to form with the inner surface a circular channel, a roller carrier comprising two telescoping sections, a roller in each section, one of said flanges having twoopposit'ely disposed slots therein through which the rollers may pass into said channel, means to expand said roller carrier to press the rollers against the blanks, means to actuate the roller carrier to reciprocate the rollers over said blanks, and means to limit the reciprocatory movement of actuating means to an angular distance smaller than the angular distance between said slots and prevent the rollers from reaching said slots while being reciprocated.

19. In a machine for forming types of a curved type carrier, the combination of a die having a circular aperture, types in intaglio in the inner face of the die against which a curved blank may be placed, means including a roller to operate against the back of the blank to press the metal into said types, and devices in said die located at the ends of said blank to prevent the metal from flowing lengthwise of the blank.

20. In a machine for forming types of a curved type carrier, the combination of a die having a circular aperture, types in intaglio in the inner face of the die against which a curved blank may be placed, means including a roller to operate against the back of the blank to press the metal into saidtypes, shoulders on said die to prevent the. metal from flowing transverselyof said blank while being acted upon by the rollers, and means to prevent the metal from flowing lengthwise of theblank.

21. In a machine for forming types of a curved type carrier, the combination of a die having a circular aperture, types on the inner face'of said die against which surface a curved blank with flanges extending alongits edges may be placed, means including a roller to' act upon the back of the blank to press it against the types to form types on said blank, and means to embrace the flanges of the blank to prevent distortion thereof whilebeing actedupon by the roller.

22. The combination of a die to assist in forming a type carrier of a typewriting machine, said die having a curved surface, types in intaglio on said surface, said die to receive a segmental blank, and pressure means to operate back and forth on the back of said blank to flow the material of said blank into the types of the die to form raised types on the blank. V L

23. The combination of a die to assist in forming type carriers of a typewriting machine, said die comprising four sections, each section having a concaved surface, the die when assembled having a circular aperture to receive two oppo sitely disposed blanks, each blank extending over the-concaved surfaces of two adjacent die sections, typesin intaglio in those portions of the concaved surfaces overlapped by the blanks, and means to flow the material of the blanks into the types of the die sections simultaneously to form raised types'on said blanks.

24. In a machine for forming type shuttles for typewriting machines, the combination of a machine frame, a chuck mounted thereon, a die detachably supported in said chuck, said die having a circular aperture therein, types extending into said die from the aperture, said aperture to receive a curved shuttle, roller means extending into said aperture to engage the shuttle, means to cause a relative'reciprocatory movement between the shuttle and the roller means to flow the metal of the shuttle into the types of the .die to thus form corresponding types on the shuttle, and means to limit the extent of the relative reciprocatory movement.

25. In a machine for forming type shuttles for typewriting machines, the combination of a machine frame, a chuck mounted thereon, a die detachably supported in said chuck, said die having a circular aperture therein, types extending into said die from the aperture, said aperture to reoeive a curved shuttle, roller means extending into said aperture to engage the shuttle, means to cause a relative reciprocatory movement between the shuttle and the roller means to flow the metal of the shuttle into the types of the die to thus form corresponding types on the shuttle, means to limit the extent of the relative reciprocatory movement, and means to adjust the roller means to vary the pressure thereof.

26. In a machine for forming type shuttles for typewriting machines, the combination of a machine frame, a chuck mounted thereon, a die detachably supported in said chuck, said die having a circular aperture therein, types extending into said die from the aperture, said aperture to receive a curved shuttle, roller means extending into said aperture to engage the shuttle, means to cause a relative reciprocatory movement between the shuttle and the roller means to flow the metal of the shuttle into the types of the die to thus form corresponding types on the shuttle, means to adjust the roller means to vary the pressure thereof, and means to render the adjusting means ineffective to thus determine the thickness of the shuttle.

27. In a machine for forming type shuttles for typewriting machines, the combination of a machine frame, a chuck mounted thereon, a die detachably supported in said chuck, said die having a circular aperture therein, types extending into said die from the aperture, said aperture to receive two oppositely disposed shuttles, means including two rollers one for each shuttle to operate thereon, said rollers being located in the die aperture, means to cause a relative reciprocatory movement between the shuttles and the rollers, means to limit the extent of the relative reciprocatory movement, roller supports, a wedge located between said supports, and means to adjust said wedge to vary the pressure of the rollers against their respective shuttles.

28. The method of forming a sheet metal type carrier which includes flowing some of the metal from the body of the carrier into intaglios of a die by repeated rolling actions on the opposite face of the carrier alternately in opposite directions to thus act, on the carrier locally and progressively from one end to the other of said carrier.

29. The method of forming a sheet metal type carrier which includes the applying pressure 10- cally to the inner face of the type carrier, progressively changing the point of application of pressure, and repeatedly reversing the operation lengthwise of the carrier to thus displace the metal in the type carrier locally and progressively from one end to the other thereof into intaglios of a die at the outer face of the type carrier.

30. In a machine to form types on a curved type carrier, the combination of a die conforming to the shape of the carrier and into which the carrier may be placed, the die having type intaglios therein, a pressure device to act against the inner face of the type carrier and to engage only a portion thereof at a time, and means to actuate the pressure device to cause it to move progressively over the inner face of the type holder while in contact therewith and successively in opposite directions to press the material from the outer face into the type intaglios.

31. In a machine to form a type shuttle, the combination of a die, said die having a cavity into which may be placed a blank shuttle, types in intaglio in the face of said die, means to hold the shuttle against accidental displacement in said die with reference to said types, pressure means to engage the shuttle locally and press it against said die, and means whereby the pressure means may be moved repeatedly and successively in opposite directions over the shuttle.

32. In a machine to form a type shuttle, the combination of a die, said die having a cavity into which may be placed a blank shuttle, types in intaglio in the face of said die, means to hold the shuttle against accidental displacement in said die with reference to said types, roller means to engage the shuttle and press it against said die, means to reciprocate the roller means, said roller means including two rollers and two roller carriers, one roller to engage the shuttle, means against which the other roller bears while the roller means is reciprocating, and means to engage said roller carriers to move one of them outwardly with respect to the other to increase the pressure of the roller against said shuttle.

33. In a machine to form a type shuttle, the combination of a die, said die having a cavity into which may be placed a blank shuttle, types in intaglio in the face of said die, means to hold the shuttle against accidental displacement in said die with reference to said types, pressure means to engage the shuttle locallyand press it outwardly against said die, means to reciprocate the pressure means, and means to determine the extent of the reciprocating movement in both directions.

34. In a machine to form a type carrier, the combination of a die, said die having a cavity into which may be placed a blank, types in intaglio in the face of said die, pressure means to ongage the inside of the shuttle and press it outwardly against said die, means to adjust the pressure means to increase the pressure thereof, and means to limit the adjustment of said pressure means to determine the thickness of the type carrier.

35. The combination of a die having a channel shaped cavity, types in intaglio in the cavity of the die against which material may be placed, means in said aperture to operate on the material to press it into said types, and devices extending cross-wise of the channel in said die to confine the material lengthwise of the channel.

36. The combination of a die comprising a plurality of channel shaped sections, a holder for said die, said die having a cavity into which material may be placed, a plurality of type intaglios in said cavity, reciprocating means having a definite range of movement to act on the material to force some of it into the intaglio to form the types of the type carrier, means on the holder to locate the die sections in definite positions with respect to the range of movement of the reciprocating means, and means between the die sections to position them with respect to each other so that the channels and the intaglios of both die sections align with each other.

37. The combination of a die having a channel shaped cavity, types in intaglio in the cavity of the die against which material may be placed, means in said cavity to operate on the material to press it into said types, devices extending crosswise of the channel in said die to confine the material lengthwise of the channel, and means to engage the die sections to prevent their spreading While the material is being operated upon.

38. The combination of a device constituting a die having an aperture therein into which a shuttle blank may be placed, type intaglios in said aperture, a pressure device in said aperture to act on the blank locally, an element to adjust the pressure means to increase its pressure, means to oscillate one of said devices with respect to the other to cause a relative movement between the shuttle and the pressure device to press some of the material from the shuttle into the type intaglios, and means to limit the extent of movement of the oscillatory device in both directions.

39. The combination of a die having a circular aperture therein, types extending into said die from the aperture, said aperture to receive a shuttle, a pressure device including two elements located in the die aperture, means to efiect a relative oscillatory movement between the shuttle and said pressure device, means to limit the extent of movement of the oscillatory device in both directions, and means to spread said elements to vary the pressure of said device against the shuttle.

40. The combination of a die having a circular aperture therein, types extending into said die from the aperture, said aperture to receive a shuttle, a pressure device in said aperture, said pressure device including two elements slidably supported by each other, a roller on one of said elements to engage said shuttle, means to effect a relative oscillatory movement between the shuttle and the pressure device, and means including a cam acting between said elements to spread them to increase the pressure of the roller against the shuttle.

41. The combination of a die having a circular aperture therein, types extending into said die from the aperture, said aperture to receive a shuttle, a pressure device including two elements located in the die aperture, means to efiect a relative oscillatory movement between the shuttle and said pressure device, means to spread said elements to vary the pressure of said device against the shuttle, and means to limit the extent of spreading of said elements in accordance with desired thickness of the shuttle.

42. The combination of a die having a circular aperture therein, types extending into said die from the aperture, said aperture to receive a shuttle, a pressure device in said aperture, said pressure device including two elements slidably supported by each other, a roller on one of said elements to engage said shuttle, each element having a slot therein to form a rectangular aperture in the pressure element, a wedge rectangular in cross-section to fit into said aperture, means to oscillate said wedge and thereby oscillate the pressure element, and means to actuate the wedge transversely of said elements to spread them and thus increase the pressure of said device against the shuttle.

43. In a machine for forming types on a type shuttle of a typewriting machine, the combination of a die, means to hold said die, said die having a circular aperture, types extending into said die from said aperture, said aperture adapted to receive a shuttle blank, roller means to operate in said aperture against said shuttle, means to reciprocate said roller means, means to limit the extent of movement of the roller means in both directions, and means extending through the reciprocating means to increase the pressure of the roller means against the shuttle.

44. In a machine for forming types on a type shuttle of a typewriting machine, the combination of a die, means to hold said die, said die having a circular aperture, types extending into said die from said aperture, said aperture adapted to receive a shuttle blank, roller means to operate in said aperture against said shuttle, a support for the roller means, means to reciprocate said roller means through the medium of said support, and means extending through said support to increase the pressure of the roller means against the shuttle.

45. The combination of a die to assist in forming a type carrier, said die being composed of a plurality of detachable sections, interlocking connections between said sections which serve also to prevent incorrect assembling of the die sections, said die having a cavity therein to receive a blank, types in intaglio on the face of said cavity, means to secure said sections together, and means in said cavity to act on said blank to form types thereon, said interlocking connections serving also to prevent lateral and radial displacement of said sections.

46. The combination of a die to assist in forming a type carrier, said die being composed of a plurality of detachable sections, each having a curved inner surface forming part of a cylindrical opening in said die into which may be placed a blank, means between the sections to locate one with respect to the other and to insure proper end to end assembling of said sections, types in intaglio on each section, means to secure said sections together, and means to act on the blank in said die to form types thereon, the means between said sections serving also to prevent lateral and radial displacement of said sections.

47. The method of producing a metal shuttle which includes the forming of a fiat blank,

curving said blank into a segment, exposing the convexed face of the segment to a die having the type characters engraved thereon, and repeatedly rolling over the concaved surface and in opposite directions while the segment is exposed to said die.

48. The combination of a die to assist in form-- ing a type carrier, said die having a cavity thereon to receive material for forming the type carrier and being composed of a plurality of de tachable segments, each segment having types thereon, said segments being placeable end to end to assemble them, means to prevent incorrect assembling of said sections, means to hold said sections, and means in said cavity to act on the material to form types thereon.

49. In a machine to form simultaneously a plurality of type shuttles, the combination of a die having a circular aperture into which may be placed a plurality of segmental shuttle blanks, type in the circular face of said die, roller means to act on said shuttles and press them against the type face of said die, and means to prevent displacement of said shuttle blanks in a circular direction.

HENRY L. PITMAN. 

